Here is a list of all documented class members with links to the class documentation for each member:

- u -

• udp_p2p_ : td::td_api::callProtocol
• udp_reflector_ : td::td_api::callProtocol
• unconfirmedSession() : td::td_api::unconfirmedSession
• unique_id_ : td::td_api::remoteFile
• unpinAllChatMessages() : td::td_api::unpinAllChatMessages
• unpinAllMessageThreadMessages() : td::td_api::unpinAllMessageThreadMessages
• unpinChatMessage() : td::td_api::unpinChatMessage
• unread_count_ : td::td_api::chat, td::td_api::forumTopic, td::td_api::updateChatReadInbox, td::td_api::updateUnreadChatCount, td::td_api::updateUnreadMessageCount
• unread_mention_count_ : td::td_api::chat, td::td_api::forumTopic, td::td_api::updateChatUnreadMentionCount, td::td_api::updateMessageMentionRead
• unread_message_count_ : td::td_api::messageThreadInfo
• unread_reaction_count_ : td::td_api::chat, td::td_api::forumTopic, td::td_api::updateChatUnreadReactionCount, td::td_api::updateMessageUnreadReactions
• unread_reactions_ : td::td_api::message, td::td_api::updateMessageUnreadReactions
• unread_unmuted_count_ : td::td_api::updateUnreadChatCount, td::td_api::updateUnreadMessageCount
• unreadReaction() : td::td_api::unreadReaction
• update_order_of_installed_sticker_sets_ : td::td_api::messageSendOptions
• update_recent_reactions_ : td::td_api::addMessageReaction, td::td_api::setStoryReaction
• updateAccessHash() : td::td_api::updateAccessHash
• updateActiveEmojiReactions() : td::td_api::updateActiveEmojiReactions
• updateActiveNotifications() : td::td_api::updateActiveNotifications
• updateAddChatMembersPrivacyForbidden() : td::td_api::updateAddChatMembersPrivacyForbidden
• updateAnimatedEmojiMessageClicked() : td::td_api::updateAnimatedEmojiMessageClicked
• updateAnimationSearchParameters() : td::td_api::updateAnimationSearchParameters
• updateAttachmentMenuBots() : td::td_api::updateAttachmentMenuBots
• updateAuthorizationState() : td::td_api::updateAuthorizationState
• updateAutosaveSettings() : td::td_api::updateAutosaveSettings
• updateBasicGroup() : td::td_api::updateBasicGroup
• updateBasicGroupFullInfo() : td::td_api::updateBasicGroupFullInfo
• updateCall() : td::td_api::updateCall
• updateChatAction() : td::td_api::updateChatAction
• updateChatActionBar() : td::td_api::updateChatActionBar
• updateChatActiveStories() : td::td_api::updateChatActiveStories
• updateChatAvailableReactions() : td::td_api::updateChatAvailableReactions
• updateChatBackground() : td::td_api::updateChatBackground
• updateChatBlockList() : td::td_api::updateChatBlockList
• updateChatDefaultDisableNotification() : td::td_api::updateChatDefaultDisableNotification
• updateChatDraftMessage() : td::td_api::updateChatDraftMessage
• updateChatFolders() : td::td_api::updateChatFolders
• updateChatHasProtectedContent() : td::td_api::updateChatHasProtectedContent
• updateChatHasScheduledMessages() : td::td_api::updateChatHasScheduledMessages
• updateChatIsMarkedAsUnread() : td::td_api::updateChatIsMarkedAsUnread
• updateChatIsTranslatable() : td::td_api::updateChatIsTranslatable
• updateChatLastMessage() : td::td_api::updateChatLastMessage
• updateChatMember() : td::td_api::updateChatMember
• updateChatMessageAutoDeleteTime() : td::td_api::updateChatMessageAutoDeleteTime
• updateChatMessageSender() : td::td_api::updateChatMessageSender
• updateChatNotificationSettings() : td::td_api::updateChatNotificationSettings
• updateChatOnlineMemberCount() : td::td_api::updateChatOnlineMemberCount
• updateChatPendingJoinRequests() : td::td_api::updateChatPendingJoinRequests
• updateChatPermissions() : td::td_api::updateChatPermissions
• updateChatPhoto() : td::td_api::updateChatPhoto
• updateChatPosition() : td::td_api::updateChatPosition
• updateChatReadInbox() : td::td_api::updateChatReadInbox
• updateChatReadOutbox() : td::td_api::updateChatReadOutbox
• updateChatReplyMarkup() : td::td_api::updateChatReplyMarkup
• updateChatTheme() : td::td_api::updateChatTheme
• updateChatThemes() : td::td_api::updateChatThemes
• updateChatTitle() : td::td_api::updateChatTitle
• updateChatUnreadMentionCount() : td::td_api::updateChatUnreadMentionCount
• updateChatUnreadReactionCount() : td::td_api::updateChatUnreadReactionCount
• updateChatVideoChat() : td::td_api::updateChatVideoChat
• updateConnectionState() : td::td_api::updateConnectionState
• updateDefaultReactionType() : td::td_api::updateDefaultReactionType
• updateDeleteMessages() : td::td_api::updateDeleteMessages
• updateDiceEmojis() : td::td_api::updateDiceEmojis
• updateFavoriteStickers() : td::td_api::updateFavoriteStickers
• updateFile() : td::td_api::updateFile
• updateFileAddedToDownloads() : td::td_api::updateFileAddedToDownloads
• updateFileDownload() : td::td_api::updateFileDownload
• updateFileDownloads() : td::td_api::updateFileDownloads
• updateFileGenerationStart() : td::td_api::updateFileGenerationStart
• updateFileGenerationStop() : td::td_api::updateFileGenerationStop
• updateFileRemovedFromDownloads() : td::td_api::updateFileRemovedFromDownloads
• updateForumTopicInfo() : td::td_api::updateForumTopicInfo
• updateGroupCall() : td::td_api::updateGroupCall
• updateGroupCallParticipant() : td::td_api::updateGroupCallParticipant
• updateHavePendingNotifications() : td::td_api::updateHavePendingNotifications
• updateInstalledStickerSets() : td::td_api::updateInstalledStickerSets
• updateLanguagePackStrings() : td::td_api::updateLanguagePackStrings
• updateMessageContent() : td::td_api::updateMessageContent
• updateMessageContentOpened() : td::td_api::updateMessageContentOpened
• updateMessageEdited() : td::td_api::updateMessageEdited
• updateMessageInteractionInfo() : td::td_api::updateMessageInteractionInfo
• updateMessageIsPinned() : td::td_api::updateMessageIsPinned
• updateMessageLiveLocationViewed() : td::td_api::updateMessageLiveLocationViewed
• updateMessageMentionRead() : td::td_api::updateMessageMentionRead
• updateMessageSendAcknowledged() : td::td_api::updateMessageSendAcknowledged
• updateMessageSendFailed() : td::td_api::updateMessageSendFailed
• updateMessageSendSucceeded() : td::td_api::updateMessageSendSucceeded
• updateMessageUnreadReactions() : td::td_api::updateMessageUnreadReactions
• updateNewCallbackQuery() : td::td_api::updateNewCallbackQuery
• updateNewCallSignalingData() : td::td_api::updateNewCallSignalingData
• updateNewChat() : td::td_api::updateNewChat
• updateNewChatJoinRequest() : td::td_api::updateNewChatJoinRequest
• updateNewChosenInlineResult() : td::td_api::updateNewChosenInlineResult
• updateNewCustomEvent() : td::td_api::updateNewCustomEvent
• updateNewCustomQuery() : td::td_api::updateNewCustomQuery
• updateNewInlineCallbackQuery() : td::td_api::updateNewInlineCallbackQuery
• updateNewInlineQuery() : td::td_api::updateNewInlineQuery
• updateNewMessage() : td::td_api::updateNewMessage
• updateNewPreCheckoutQuery() : td::td_api::updateNewPreCheckoutQuery
• updateNewShippingQuery() : td::td_api::updateNewShippingQuery
• updateNotification() : td::td_api::updateNotification
• updateNotificationGroup() : td::td_api::updateNotificationGroup
• updateOption() : td::td_api::updateOption
• updatePoll() : td::td_api::updatePoll
• updatePollAnswer() : td::td_api::updatePollAnswer
• updateRecentStickers() : td::td_api::updateRecentStickers
• updates() : td::td_api::updates
• updates_ : td::td_api::updates
• updateSavedAnimations() : td::td_api::updateSavedAnimations
• updateSavedNotificationSounds() : td::td_api::updateSavedNotificationSounds
• updateScopeNotificationSettings() : td::td_api::updateScopeNotificationSettings
• updateSecretChat() : td::td_api::updateSecretChat
• updateSelectedBackground() : td::td_api::updateSelectedBackground
• updateServiceNotification() : td::td_api::updateServiceNotification
• updateStickerSet() : td::td_api::updateStickerSet
• updateStory() : td::td_api::updateStory
• updateStoryDeleted() : td::td_api::updateStoryDeleted
• updateStoryListChatCount() : td::td_api::updateStoryListChatCount
• updateStorySendFailed() : td::td_api::updateStorySendFailed
• updateStorySendSucceeded() : td::td_api::updateStorySendSucceeded
• updateStoryStealthMode() : td::td_api::updateStoryStealthMode
• updateSuggestedActions() : td::td_api::updateSuggestedActions
• updateSupergroup() : td::td_api::updateSupergroup
• updateSupergroupFullInfo() : td::td_api::updateSupergroupFullInfo
• updateTermsOfService() : td::td_api::updateTermsOfService
• updateTrendingStickerSets() : td::td_api::updateTrendingStickerSets
• updateUnconfirmedSession() : td::td_api::updateUnconfirmedSession
• updateUnreadChatCount() : td::td_api::updateUnreadChatCount
• updateUnreadMessageCount() : td::td_api::updateUnreadMessageCount
• updateUser() : td::td_api::updateUser
• updateUserFullInfo() : td::td_api::updateUserFullInfo
• updateUserPrivacySettingRules() : td::td_api::updateUserPrivacySettingRules
• updateUsersNearby() : td::td_api::updateUsersNearby
• updateUserStatus() : td::td_api::updateUserStatus
• updateWebAppMessageSent() : td::td_api::updateWebAppMessageSent
• upgradeBasicGroupChatToSupergroupChat() : td::td_api::upgradeBasicGroupChatToSupergroupChat
• upgraded_from_basic_group_id_ : td::td_api::supergroupFullInfo
• upgraded_from_max_message_id_ : td::td_api::supergroupFullInfo
• upgraded_to_supergroup_id_ : td::td_api::basicGroup
• uploaded_size_ : td::td_api::remoteFile
• uploadStickerFile() : td::td_api::uploadStickerFile
• url_ : td::td_api::answerCallbackQuery, td::td_api::authenticationCodeTypeFragment, td::td_api::bankCardActionOpenUrl, td::td_api::botMenuButton, td::td_api::callbackQueryAnswer, td::td_api::getChatBoostLinkInfo, td::td_api::getMessageLinkInfo, td::td_api::getWebAppUrl, td::td_api::getWebPageInstantView, td::td_api::httpUrl, td::td_api::inlineKeyboardButtonTypeLoginUrl, td::td_api::inlineKeyboardButtonTypeUrl, td::td_api::inlineKeyboardButtonTypeWebApp, td::td_api::inlineQueryResultArticle, td::td_api::inlineQueryResultsButtonTypeWebApp, td::td_api::inputInlineQueryResultArticle, td::td_api::internalLinkTypeAttachmentMenuBot, td::td_api::internalLinkTypeChatBoost, td::td_api::internalLinkTypeInstantView, td::td_api::internalLinkTypeMessage, td::td_api::internalLinkTypeSideMenuBot, td::td_api::keyboardButtonTypeWebApp, td::td_api::loginUrlInfoOpen, td::td_api::loginUrlInfoRequestConfirmation, td::td_api::messageSponsorTypeWebsite, td::td_api::openWebApp, td::td_api::pageBlockEmbedded, td::td_api::pageBlockEmbeddedPost, td::td_api::pageBlockPhoto, td::td_api::pageBlockRelatedArticle, td::td_api::paymentOption, td::td_api::paymentProviderOther, td::td_api::richTextAnchorLink, td::td_api::richTextReference, td::td_api::richTextUrl, td::td_api::rtmpUrl, td::td_api::textEntityTypeTextUrl, td::td_api::tMeUrl, td::td_api::userLink, td::td_api::webAppInfo, td::td_api::webPage
• urls_ : td::td_api::tMeUrls
• use_chat_info_database_ : td::td_api::setTdlibParameters
• use_default_disable_mention_notifications_ : td::td_api::chatNotificationSettings
• use_default_disable_pinned_message_notifications_ : td::td_api::chatNotificationSettings
• use_default_mute_for_ : td::td_api::chatNotificationSettings
• use_default_mute_stories_ : td::td_api::chatNotificationSettings, td::td_api::scopeNotificationSettings
• use_default_show_preview_ : td::td_api::chatNotificationSettings
• use_default_show_story_sender_ : td::td_api::chatNotificationSettings
• use_default_sound_ : td::td_api::chatNotificationSettings
• use_default_story_sound_ : td::td_api::chatNotificationSettings
• use_file_database_ : td::td_api::setTdlibParameters
• use_less_data_for_calls_ : td::td_api::autoDownloadSettings
• use_message_database_ : td::td_api::setTdlibParameters
• use_portrait_orientation_ : td::td_api::startGroupCallRecording
• use_secret_chats_ : td::td_api::setTdlibParameters
• use_test_dc_ : td::td_api::setTdlibParameters
• used_sender_id_ : td::td_api::messageReaction
• user() : td::td_api::user
• user_ : td::td_api::updateUser
• user_administrator_rights_ : td::td_api::keyboardButtonTypeRequestChat
• user_chat_id_ : td::td_api::updateNewChatJoinRequest
• user_full_info_ : td::td_api::updateUserFullInfo
• user_id_ : td::td_api::addChatMember, td::td_api::addStickerToSet, td::td_api::botCommandScopeChatMember, td::td_api::call, td::td_api::chatAdministrator, td::td_api::chatBoost, td::td_api::chatEventMemberInvited, td::td_api::chatEventMemberPromoted, td::td_api::chatInviteLinkCount, td::td_api::chatInviteLinkMember, td::td_api::chatJoinRequest, td::td_api::chatStatisticsAdministratorActionsInfo, td::td_api::chatStatisticsInviterInfo, td::td_api::chatStatisticsMessageSenderInfo, td::td_api::chatTypePrivate, td::td_api::chatTypeSecret, td::td_api::contact, td::td_api::createCall, td::td_api::createNewSecretChat, td::td_api::createNewStickerSet, td::td_api::createPrivateChat, td::td_api::gameHighScore, td::td_api::getGameHighScores, td::td_api::getGroupsInCommon, td::td_api::getInlineGameHighScores, td::td_api::getMenuButton, td::td_api::getUser, td::td_api::getUserFullInfo, td::td_api::getUserProfilePhotos, td::td_api::getUserSupportInfo, td::td_api::inlineKeyboardButtonTypeUser, td::td_api::messageChatDeleteMember, td::td_api::messageSenderUser, td::td_api::messageUserShared, td::td_api::messageViewer, td::td_api::processChatJoinRequest, td::td_api::secretChat, td::td_api::setGameScore, td::td_api::setInlineGameScore, td::td_api::setMenuButton, td::td_api::setPassportElementErrors, td::td_api::setStickerSetThumbnail, td::td_api::setUserPersonalProfilePhoto, td::td_api::setUserSupportInfo, td::td_api::sharePhoneNumber, td::td_api::storePaymentPurposeGiftedPremium, td::td_api::storyViewer, td::td_api::suggestUserProfilePhoto, td::td_api::textEntityTypeMentionName, td::td_api::tMeUrlTypeUser, td::td_api::transferChatOwnership, td::td_api::updateUserFullInfo, td::td_api::updateUserStatus, td::td_api::uploadStickerFile
• user_ids_ : td::td_api::addChatMembers, td::td_api::chatJoinRequestsInfo, td::td_api::createNewBasicGroupChat, td::td_api::getChatEventLog, td::td_api::importedContacts, td::td_api::inviteGroupCallParticipants, td::td_api::messageInviteVideoChatParticipants, td::td_api::removeContacts, td::td_api::setCloseFriends, td::td_api::storyPrivacySettingsSelectedUsers, td::td_api::updateAddChatMembersPrivacyForbidden, td::td_api::userPrivacySettingRuleAllowUsers, td::td_api::userPrivacySettingRuleRestrictUsers, td::td_api::users
• user_is_bot_ : td::td_api::keyboardButtonTypeRequestUser
• user_is_premium_ : td::td_api::keyboardButtonTypeRequestUser
• user_location_ : td::td_api::getInlineQueryResults, td::td_api::updateNewChosenInlineResult, td::td_api::updateNewInlineQuery
• userFullInfo() : td::td_api::userFullInfo
• userLink() : td::td_api::userLink
• username_ : td::td_api::callServerTypeWebrtc, td::td_api::checkChatUsername, td::td_api::pageBlockChatLink, td::td_api::proxyTypeHttp, td::td_api::proxyTypeSocks5, td::td_api::searchPublicChat, td::td_api::setSupergroupUsername, td::td_api::setUsername, td::td_api::toggleBotUsernameIsActive, td::td_api::toggleSupergroupUsernameIsActive, td::td_api::toggleUsernameIsActive
• usernames() : td::td_api::usernames
• usernames_ : td::td_api::reorderActiveUsernames, td::td_api::reorderBotActiveUsernames, td::td_api::reorderSupergroupActiveUsernames, td::td_api::supergroup, td::td_api::user
• userPrivacySettingAllowCalls() : td::td_api::userPrivacySettingAllowCalls
• userPrivacySettingAllowChatInvites() : td::td_api::userPrivacySettingAllowChatInvites
• userPrivacySettingAllowFindingByPhoneNumber() : td::td_api::userPrivacySettingAllowFindingByPhoneNumber
• userPrivacySettingAllowPeerToPeerCalls() : td::td_api::userPrivacySettingAllowPeerToPeerCalls
• userPrivacySettingAllowPrivateVoiceAndVideoNoteMessages() : td::td_api::userPrivacySettingAllowPrivateVoiceAndVideoNoteMessages
• userPrivacySettingRuleAllowAll() : td::td_api::userPrivacySettingRuleAllowAll
• userPrivacySettingRuleAllowChatMembers() : td::td_api::userPrivacySettingRuleAllowChatMembers
• userPrivacySettingRuleAllowContacts() : td::td_api::userPrivacySettingRuleAllowContacts
• userPrivacySettingRuleAllowUsers() : td::td_api::userPrivacySettingRuleAllowUsers
• userPrivacySettingRuleRestrictAll() : td::td_api::userPrivacySettingRuleRestrictAll
• userPrivacySettingRuleRestrictChatMembers() : td::td_api::userPrivacySettingRuleRestrictChatMembers
• userPrivacySettingRuleRestrictContacts() : td::td_api::userPrivacySettingRuleRestrictContacts
• userPrivacySettingRuleRestrictUsers() : td::td_api::userPrivacySettingRuleRestrictUsers
• userPrivacySettingRules() : td::td_api::userPrivacySettingRules
• userPrivacySettingShowBio() : td::td_api::userPrivacySettingShowBio
• userPrivacySettingShowLinkInForwardedMessages() : td::td_api::userPrivacySettingShowLinkInForwardedMessages
• userPrivacySettingShowPhoneNumber() : td::td_api::userPrivacySettingShowPhoneNumber
• userPrivacySettingShowProfilePhoto() : td::td_api::userPrivacySettingShowProfilePhoto
• userPrivacySettingShowStatus() : td::td_api::userPrivacySettingShowStatus
• users() : td::td_api::users
• users_nearby_ : td::td_api::chatsNearby, td::td_api::updateUsersNearby
• userStatusEmpty() : td::td_api::userStatusEmpty
• userStatusLastMonth() : td::td_api::userStatusLastMonth
• userStatusLastWeek() : td::td_api::userStatusLastWeek
• userStatusOffline() : td::td_api::userStatusOffline
• userStatusOnline() : td::td_api::userStatusOnline
• userStatusRecently() : td::td_api::userStatusRecently
• userSupportInfo() : td::td_api::userSupportInfo
• userTypeBot() : td::td_api::userTypeBot
• userTypeDeleted() : td::td_api::userTypeDeleted
• userTypeRegular() : td::td_api::userTypeRegular
• userTypeUnknown() : td::td_api::userTypeUnknown
• utility_bill_ : td::td_api::inputPassportElementUtilityBill, td::td_api::passportElementUtilityBill